Delivered in April 1924 during an educational conference, these five lectures are the last public lectures that Steiner gave in Germany. Karl Stockmeyer writes ``1,700 people listened to him. The generous applause from this great crowd was deeply moving, while at the end of the last lecture the applause became an ovation that seemed as if it would never end``.
At the close of last lecture, Steiner said in six lines all that he had meant to say: To spend oneself in matter / is to grind down souls. / To find oneself in the spirit / is to unite human beings. / To see oneself in all humanity / is to construct worlds.
5 Lectures GA308, April 8 - 11, 1924, Stuttgart.